Flashcards in Chapter 4 Deck (23):

1

## The entire group of individuals about which we want information from

### Population

2

## The part of the population from which we actually collect information

### Sample

3

## Collecting data from each member of a population is called

### Census

4

## We use information from the ____ to draw conclusions about the entire ____

### Sample, population

5

## The two steps in planning as sample survey is to say exactly _________ and to say exactly ________

### What population we want to describe, what we want to measure

6

## The population in a sample survey can consist of

### People, animals, or things

7

## Choosing individuals who are easiest to reach results in a

### Convenience sample

8

## The design of a statistical study shows ____ if it’s systematically favors certain outcomes

### Bias

9

## A ______ consisted of people who choose themselves by responding to a general appeal. These show ___ because people with sting opinions Re most likely to respond

### Voluntary response sample, bias

10

## ______, the use of chance to select a sample, is the central principle of statistical sampling

### Random sampling

11

## A sample chosen by ___ rules out both favoritism by the sampler and self-selection by the respondents

### Chance

12

## In statistics, the word ____ means due to chance

### Random

13

## A ________ of size n consists of n individuals from the population chosen in such a way that every set of n individuals has an equal chance to be the sample actually selected

### Simple random sample

14

## To select a _________ first classify the population into groups of similar individuals called ___

### Stratified random sample, strata

15

## To take a _______ first division the population into smaller groups called _____ that mirror the characteristics of the population

### Cluster sample, clusters

16

## The difference between strata and clusters, we want each ______ to contain similar individuals and we want each _____ to look just like the population

### Stratum, cluster

17

## Most large-stage sample surveys use ________ that combine two or more sampling methods

### Multistage samples

18

## The process of drawing conclusions about a population on the basis of sample data is called

### Inference

19

## A ______ is a list of individuals from which we draw our sample

### Sampling frame

20

## ______ occurs when some groups in the population are left out of the process of choosing the sample

### Undercoverage

21

## ______ occurs when an individual chosen for the sample can’t be contacted or refuses to participate

### Noresponse

22

## A systematic patter of incorrect responses in a sample survey leads to

### Response bias

23